Frequency 247 20 16 12 8- 4 0+ 70.5 10 75.5 Prealgebra Exam Scores 4 80.5 19 85.5 Scores 17 90.5 15 95.5 100.5

Q: find first and third quartile…

A: Given, the following…

Q: Find the mean

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Q: Find the number of distinguishable arrangements of the word "EMPATHY".Your answer is :

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Q: find out 3rd decile  65,85,75,30,20,42,94,34,75,15

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Q: Find the 1rst quartile and 3rd quartile of the following numbers  41,43,46,47,48,50,51,52,53,54,55

A: The given numbers already in the increasing order: 41,43,46,47,48,50,51,52,53,54,55 Median = middle…

Q: The number of meteorites found in 11 states of the United States is 89, 47, 164, 470, 296, 30, 215,…

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Q: What is the weighted mean of the numbers 10%, 30%, 60%, 70, 86 and 94

A: The formula of weighted mean is given by…

Q: What is the mode of the following: 49, 74, 99, 74, 74, 10, 65, 49, 51

A: Mode: The number that appears most frequently in the data set is called as Mode. Given data, 49, 74,…

Q: What is the average of  2.0, 32.0, 44.0, 14.5, 7.5 ?

A: For a set of n observations, x1, x2, ... , xn, mean or average is given by, This is measure of…

Q: Find the number of different selections of 4 letters from the word STATISTICS.

A: "STATISTICS" No.of letters in the word " STATISTICS " =10

Q: Create 5 Number Summaries: minimum, Q1, Q2, Q3(median), maximum, using the following data sets.…

A: Data : { 45,58,34,42,52,49,50,45,51 } First arrange data in increasing order : { 34, 42, 45, 45, 49,…

Q: Find the mean: 4,5,7,9

A: The data set is: 4,5,7,9

Q: The following numbers of BX staples are used during a given period: 28, 250, 38, 108, 92, 130, 25,…

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Q: Find the vAriance of the sample data: 191, 215, 76, 262, 93, 163, 162, 268

A: Measure of dispersion measures the spread of the data. Standard deviation indicates how much the…

Q: Xylem Park hosts many expos to teach the public about plants. Last year's desert plant expo featured…

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Q: What are the favorite sports of the high school across Harlem Children Zone?

A: Basketball is a popular sport in the high schools inside the Harlem Children's Zone, with a strong…

Q: 488​, 296​, 488​, 384​, 360​, 336​, 416​, 472 mean

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Q: Write a set of 6 unique number that is skewed to the left And had a mean of 6 and Median of 8

A: Introduction: It is required to create a set of 6 unique numbers, such that the distribution is…

Q: Jay has 14 stat books. In how many different ways can he arrange 4 of them on a bookshelf?

A: Permutation is defined as an arrangement of objects in a definite order. The members or elements of…

Q: A boxplot for a set of 80 scores is given below. How many scores are represented in the blue section…

A: Given total number of scores =80

Q: In order to see which brand of golf balls is best (as measured by distance travelled), an experiment…

A: In the given problem we have given that three groups and respectively those are, 1. Callaway 2. Nike…

Q: Sample proportion: (Choose one) Population proportion: (Choose one) v

A: Given: n1 = population size = 49 n2 = sample size =71 x1 = number of favorable cases in population =…

Q: Find the mode of the following amounts of exercise (in hours) randomly selected runners completed…

A: Find the mode of the following amounts of exercise (in hours) randomly selected runners completed…

Q: A class took an English test and a Math test. The test scores of 25 students for both tests are…

A: Given:   English Math 60 80 35 40 80 45 88 85 76 90 30 95 66 65 50 75 75 55…

Q: find third quartile   105,108,110,110,112,120,140,150,180

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Q: find 76th percentile   100,109,120,135,125,142,126,108,110,135,120,145,123

A: Given data 100,109,120,135,125,142,126,108,110,135,120,145,123